ES2286855T3 - PACK OF DISPERSATION AND PROCEDURE FOR THE MANUFACTURE OF THE SAME. - Google Patents

Abstract

A dispensing container for products of fluid consistency and the like, comprising: a container (2) formed to receive and retain a product of fluid consistency within an inner portion thereof, and including a bottom portion (16) with an opening (4) of discharge that crosses it; an automatic seal (5) of tightness comprising a portion (6) of marginal flange and a portion (7) of head with a hole (8) extending therethrough, which opens to allow fluid to flow to its through in response to communication with a predetermined discharge pressure, and is closed to interrupt the flow of fluid therethrough after the withdrawal of the predetermined discharge pressure; and wherein said flange portion (6) of said closure (5) surrounds and encompasses said discharge opening (4) of said bottom portion (16) of the container, and is constructed from a thermoplastic material that is coupled by thermal fusion to said closure bottom (16) to constitute a firm interconnection and a fluid tight seal between them, whereby the liquid product of said container (2) can be dispensed either directly through said closing hole (8) by applying said discharge pressure on the inner portion of said container (2) or indirectly inserting a straw (28) through said closing hole (8) and applying a vacuum to the straw (28), characterized in that said container (2) has a multi-piece construction comprising a bag portion (15) and a bottom panel (16) defining a bottom portion; and said closure (5) is molded from a thermoplastic material directly on said bottom panel (16) of the container before connecting said closure with said sack portion (15) of said container (2).

Description

Dispensing container and procedure for manufacture of it.

Background of the invention

The present invention relates to the field of packaging of products of fluid consistency and the like, and in particular to a dispensing container and a procedure for manufacture of it.

They are currently available many different types of containers or containers for packaging of non-solid products of the type that are susceptible to flow, such as materials of fluid consistency or fluidized, including liquids, pastes, powders and the like, substances that are collectively and generically designated herein memory as "fluids". Some of these packages include a dispenser that allows to unload from the container an amount selected from fluid, and then becomes airtight again To close the container.

Dispensing valves with automatic seal of tightness have been used for certain types of products, such as the container disclosed in US Patent No. 4,728,006 to Drobish et al , which is designed for shampoos, conditioners, and the like. However, it is known that said valves experience certain problems of tightness and irregular dispensing peculiarities, particularly when the containers are exposed to considerable temperature variations.

Recently, liquid silicone rubber valves have been used in some types of packaging, and they have been particularly advantageous since the material is inherently quite inert and, therefore, does not become adulterated or react with the packaged product. Examples of packages of the type indicated are provided in the US patents of the applicant Nos ... 5,033,655, 5,213,236; 5,377,877 and 5,409,144 of Brown et al , which are incorporated by reference herein.

Although liquid silicone rubber has Many attributes for use in packaging, it also has other characteristics that make these applications problematic. By example, the surfaces of silicone rubber parts Liquid are extremely viscous or sticky, with a coefficient of very high friction. As a result, the manipulation of The same is difficult, and when trying to fix a dispensing valve to a container by means of a threaded collar arrangement conventional, the surfaces of the valve flange are usually fixed firmly to the adjacent surfaces of the bowl and collar before the collar can be tightened in a way firm enough to create a waterproof leaks The tightening of the collar often causes the flange of the valve as well as the entire valve is distorted with respect in its original designed form, thus preventing constitution of a secure seal, and / or modifying the intended dispensing and sealing characteristics of the valve.

Another drawback associated with the use of rubber of liquid silicone in dispensing valves for the packaging of Products is that it cannot be susceptible to thermal fusion. So same, there is currently no technology available to adhere quickly and reliably a liquid silicone valve to a container, at least without substantial preparation, what in this The commercial high-speed assembly has recently become viable.

The mentioned problems are resolved by the invention, which is defined by a container of dispensing for products of fluid consistency and the like, of according to independent claim 1 and a method to manufacture dispensing containers according to the independent claim 3. Claim 2 refers to a preferred embodiment of the dispensing container of according to claim 1, and claim 4 refers to a specifically advantageous embodiment according to the claim 3. The following sections describe various aspects related to the claimed invention according to as defined with claims 1 to 4 above mentioned.

An aspect of the present invention is a container of dispensing for products of fluid consistency and the like, which includes a container configured to receive and retain in inside a product of fluid consistency, with an opening of download made through it. An automatic closing of tightness includes a portion of marginal flange, and a portion of head, with a hole that opens and closes in response to the application of a predetermined discharge pressure. The portion of closing flange is located around and encompasses the opening of discharge, and is constructed from a thermoplastic material, which is applied to the vessel by thermal fusion to constitute a firm interconnection and a seal to the fluids between them.

Another aspect of the present invention is a dispensing set for consistency product packaging fluid and the like, of the type that includes a shaped container to receive and retain a product of fluid consistency within an inner portion thereof, with a discharge opening that go through An automatic seal includes a portion marginal flange, a portion of head with a hole that opens and closes in response to the application of a pressure of default download. A dispensing panel built to from a thermoplastic material includes an opening of download made through it. The flange portion of the closure surrounds and encompasses the discharge opening, and is built to from a thermoplastic material that is applied by fusion thermal to the dispensing panel to constitute an interconnection safe and fluid tightness between them.

Another additional aspect of the present invention It is a procedure to manufacture dispensing containers for fluid consistency products and the like, comprising the constitution of a container configured to receive and retain a product of fluid consistency within an inner portion of that. A discharge opening is formed through the container. Automatic sealing of the seal is provided. type that incorporates a marginal flange and a head portion with a hole that extends through it, which opens to allow fluid flow through it in response to the communication with a predetermined discharge pressure, and it closes to prevent the flow of fluid through it after removal of the default discharge pressure. The flange portion of the closure is located around the discharge opening of the container to close it The flange portion of the closure is joined by fusion thermal to the container to constitute a firm interconnection and a fluidic tightness between them.

Another additional aspect of the present invention is a process for manufacturing dispensing containers and the like, comprising the supply of an elongated strip of heat sealable material to constitute at least some dispensing panels intended for associated containers of the type that includes tanks. There are constituted openings in the strip to define discharge openings of the container. There are thermoplastic closures molded in situ directly on the strip, and in which the closures have some head portions, and marginal flange portions that are constituted around and close the discharge openings made in the strip. The head portions of the closures are split to constitute holes, which open to allow fluid flow through it in response to their communication with a predetermined discharge pressure, and close to prevent fluid flow through of them after the withdrawal of the predetermined discharge pressure. The strip is cut to form dispensing panel assemblies, each comprising at least one of the dispensing panels with at least one of the closures molded thereon. The dispensing panel assemblies are connected to the reservoirs to form the dispensing containers, the liquid product located within the container being able to be dispensed either directly through the closing hole by applying pressure to the container, or indirectly inserting a straw through of the closing hole and applying the vacuum to the straw.

The main objectives of the present invention are to provide a dispensing package that offers an economical construction that does not leak. The dispensing container has an automatic seal with a hole that is preferably configured so that the liquid product inside the container can be dispensed either directly through the closure hole by applying a discharge pressure to the inside of the container, or indirectly by inserting a straw through the closing hole and applying a vacuum to the straw. The closure can be molded in situ directly on a strip of thermoplastic material to minimize handling of the parts. The closing holes are preferably formed while the closures are still fixed to a continuous strip of container material, to achieve a precise location of the holes in the closing heads. The entire package can be constructed from a strip of heat-sealable material, so that the manufacture of the package can be fully automated to further reduce costs.

These and other advantages of the invention are understand and appreciate more fully by the subject matter experts referring to the following report Descriptive description, claims and drawings attached.

Brief description of the drawings

Fig. 1 is a perspective view of a dispensing package incorporating the present invention, with a portion thereof open to show internal construction.

Fig. 2 is another perspective view of the dispensing container, with a portion thereof open for Show internal construction.

Fig. 3 is a cross-sectional view, vertical, of the dispensing container.

Fig. 4 is a side elevation view of the dispensing container, with a portion of that open for Show internal construction.

Fig. 4A is a cross-sectional view, enlarged and fragmented, of the dispensing container, which shows a portion of said container of the automatic seal in position completely closed and fully retracted.

Fig. 4B is a cross-sectional view, enlarged and fragmented, of the dispensing container showing the close in, fully closed and fully closed position extended.

Fig. 4C is a cross-sectional view, enlarged and fragmented, of the dispensing container, which shows the closure in fully open position and completely extended.

Fig. 5 is a partially illustration schematic of a procedure for manufacturing a container of dispensing incorporating the present invention, with openings Discharge formed along a strip of material heat sealable.

Fig. 6 is a top plan view, partially schematic, of the shaped strip shown in Fig. 5.

Fig. 7 is a partially schematic cross-sectional view of a closure formed in situ on the shaped strip.

Fig. 8 is a top plan view, partially schematic, of the strip after the closures have been molded on her.

Fig. 9 is a cross-sectional view, vertical, partially schematic, of a stage of the process of conformation of holes in the closures.

Fig. 10 is a top plan view, partially schematic, of the strip after the holes

Fig. 11 is a top plan view, partially schematic, of the strip cut along to form the bottom panels of the packages.

Fig. 12 is a side elevation view Fragmentary of a bottom panel set.

Fig. 13 is a bottom plan view of a dispensing container already assembled.

Fig. 14 is a partially schematic view of the side elevation of a packaging strip that is shaped to constitute a bag.

Fig. 15 is a side elevation view partially schematic of the packaging strip, in which the sides of the package have been heat sealed to each other.

Fig. 16 is a cross-sectional view, vertical, partially schematic of a procedure for mounting the lower panel assemblies in a bag of the associated container, and in which the assembled container is being filled with a product of fluid consistency

Fig. 17 is a side elevation view of a unclaimed embodiment of the present package of dispensing, with a portion thereof open to show the internal construction

Fig. 18 is a perspective view of another additional embodiment, not claimed.

Detailed description of the embodiments preferred

For the purposes of this description, the terms "superior", "inferior", "right", "left", "rear", "front", "vertical", "horizontal" and derivatives thereof, will refer to the invention according to the orientation shown in Fig. 1. However, it should be understood that the invention may adopt various orientations and sequences of alternative stages, except when expressly specify otherwise. It must also be understood that the specific devices and processes illustrated in the drawings attached and described in the subsequent report are simply examples of embodiments of the concepts inventories defined in the appended claims. So, specific dimensions and other physical characteristics related to the embodiments disclosed herein memory should not be considered as limiting, unless claims expressly state otherwise.

Numerical reference 1 (Figs. 1 to 4) generically designates a dispensing container incorporating the present invention. The dispensing container 1 is particularly designed and adapted for use in combination with products of fluid consistency, such as juices, cold tea, punches and other similar products. The dispensing container 1 includes a container 2 that is configured to receive and retain the product of fluid consistency therein, and includes a discharge opening or opening 4 made therethrough. An automatic seal 5 includes a flange portion 6 and a head portion 7 with a hole 8 that opens and closes in response to the application of a predetermined discharge pressure. The flange portion 6 of the closure 5 surrounds and encompasses the discharge opening 4 of the dispensing container 1, and is constructed from a thermoplastic material thermally coupled to the dispensing container 1 to constitute a firm interconnection and a seal to the fluids between
they.

The dispensing container illustrated 1 has the nature of a bag or sack of vertical placement, and is constructed from a strip of heat sealable material relatively thin, such as a sheet or film laminated, and includes a bag portion 15, and a bottom panel 16 in which the discharge opening 4 of the packaging of dispensing 1. As explained in more detail below, the illustrated sack portion 15 of the dispensing container 1 may be constituted by interconnection strips of a material heat sealable, flexible, relatively thin, through connections or continuous heat sealed joints 17 at the top of the container 2, and in numerical reference 18 along the opposite side edges 19 of the container 2.

As described in more detail below, the illustrated lower panel 16 of the dispensing container 1 can also be constituted from a strip 22 (Figs. 5 to 8) of a heat-sealable, flexible, relatively thin material, as per example a sheet or laminated film. In the illustrated example, the discharge openings 4 have a circular plan shape, and are located in a separation relationship at regular intervals predetermined along the longitudinal centerline of the strip 22.

In the illustrated example, the valve with automatic seal or seal 5 (Figs. 4A to 4C) has a shape substantially analogous to the dispensing valve disclosed in related US Patent 5,213,236, and includes an elastically flexible connector sleeve portion, having a terminal portion thereof connected with the flange portion 6 of the closure 5, and an opposite terminal portion with respect to that connected with the head portion 7 of the closure 5. As discussed in Patent 5,213,236 of Brown et al ., the closure 5 adopts a generally concave orientation when the hole 8 is in a completely closed position (Fig. 4A) and a convex orientation when the hole 8 is in a completely open position (Fig. 4C). The connector sleeve portion 25 of the closure 5 allows the head portion 7 of the closure 5 to alternate between the fully open and fully closed positions. The connecting sleeve 25 of the illustrated closure 5 has a longitudinal, J-shaped cross-sectional configuration, and the head portion 7 has a tapered thickness, in which the inner portion of the head portion 7 disposed adjacent to the hole 8 it is thinner than the outer portion of the head portion 7. The illustrated head portion 7 has an inner surface 26 of arched configuration and an outer surface 27 of arched configuration, in which the inner surface 26, which communicates with the product of fluid consistency, it has a radius greater than the outer surface 27, which communicates with the outside atmosphere.

Automatic sealing closure illustrated 5 It comes in the form of a one-piece valve, which has a configuration in side elevation in the form of a hat in its state molded or normal. The elastic flexibility of the portion of connector sleeve 25 allows it to bend in two and to then it extends undulatingly, as a diaphragm with the head portion 7 of the valve mounted on the center of it so as to allow the head portion 7 of the valve moves or floats freely in and out outside in axial direction with respect to the discharge opening 4 of the container 2.

The reciprocating movement of the head portion 7 of the valve and connector sleeve portion 25 provides several important advantages to the dispensing container 1. By example, the connector sleeve portion 25 is preferably configured with enough flexibility for increments abnormal pressure developed inside the vessel 2, such as those caused by thermal expansion, vibrations, shock impact forces, and the like, be counteracted by the axial variation movement of the portion head 7 of the valve with respect to the flange portion marginal 6, to relieve excess pressure on the orifice of download 8.

Another example of the benefits obtained by the reciprocating movement of the head portion 7 of the valve over the sleeve portion 25 is that the sleeve portion 25 is preferably configured with enough flexibility so that any misalignment and / or distortion of the flange portion 6 of the valve is not transmitted to the head portion 7 of the valve thereby allowing unobstructed operation of the discharge hole 8. The connector sleeve portion 25 tends to incommunicate or isolate the head portion 7 of the valve with with respect to the marginal flange portion 6, so that it can float freely, thereby avoiding the problems associated with the distortion of hole 8 or head portion 7 of the valve. This feature is particularly important in the illustrated dispensing container, in which the container 2 is constructed from a highly flexible material, as per example foil or foil laminated film illustrated. When a pressure is applied to container 2 to dispense from it the product of fluid consistency, the panel bottom 16 may be distorted, particularly when the container of dispensing is emptying. The flexible nature of the connector sleeve portion 25 allows the head portion 7 of the valve act in reciprocating freely, even when the panel background 16 is distorted, thus ensuring Convenient flow characteristics, and avoiding leaks.

Another additional benefit obtained by the reciprocating motion of the head portion 7 of the valve is that the connector sleeve portion 25 is preferably configured with enough flexibility to require a reasonably moderate pressure (that is, one that substantially is less than the pressure applied on the predetermined opening of hole 8) to modify the head portion 7 of the valve from closed and fully retracted position shown in Fig. 4A to the closed and fully extended position shown in Fig. 4C, thereby improving the "feeling" of dispensing of the dispensing container 1. When the user grabs the container 2 and applies a force to the side walls, the pressure generated inside the container causes the head portion 7 of the valve varies over the portion of flexible connector sleeve 25 between the closed position and fully retracted shown in Fig. 4A to position closed and fully extended shown in Fig. 4B, point in which the head portion 7 of the valve stops momentarily, and the subsequent displacement of the portion of valve head 7 resists until forces are exerted additional on container 2, which requires a pressure inside the vessel 2 greater than the opening pressure predetermined hole 8. This movement of portion 25 of flexible connector sleeve and head portion 7 of the valve is detected by the user through touch or a sensation, typically in the form of vibration or sensation experienced wave in the side walls of the container when the head portion 7 of the valve reaches the position closed, fully extended (Fig. 4B). The movement wave indicates to the user that the head portion 7 of the valve is fully extended, and that an additional pressure will cause hole 8 to open instantly and dispense the product of fluid consistency. When hole 8 opens and Instantly close, some vibrations are communicated or undulations to the user through the side walls of the vessel to contribute to flow control precise.

Although the shape of the automatic sealing 5 is similar to that disclosed in the Brown et al 5,213,236 patent, the present automatic sealing 5 is constituted from a thermoplastic material, instead of the liquid silicone rubber material preferably used in combination with the Brown et al valve of the prior art. By using a thermoplastic material, at least in the flange portion 6 of the closure 5, the closure 5 can be thermally coupled to the dispensing container 1 in the manner discussed in greater detail below.

In a functional embodiment of the present invention, the closure 5 is constructed from a thermoplastic rubber compound, such as a polymer of Kraton brand mix, and in particular, the one marketed with the designation or brand Dynaflex G2735.

In operation, a dispensing container 1 full can be used to dispense the product of consistency fluid by simply applying pressure on the sack portion 15 of the dispensing container 1 sufficient to change the portion from head 7 of closure 5 to the fully open position, and open the hole portion 8 of the closure 5. A stream of fluid consistency product is then dispensed from the dispensing container 1, which can be directed on a appropriate beverage container or directly to the mouth of the Username. Alternatively, as shown in Fig. 2, you can a straw 28 is inserted through the closure hole 8 to extract the fluid from the dispensing container 1 by applying a vacuum to the straw 28.

Figs. 5 to 16 schematically illustrate a process incorporating the present invention for manufacturing the dispensing container 1. With reference to Fig. 5, a roll 30 of heat-sealable, flexible, relatively thin material is provided, which is unwound and cut to form the flat strip 22. The discharge openings 4 are first formed in the strip 22 at regular intervals along the longitudinal centerline of the strip 22 by means such as the illustrated cutting or drilling operation, which includes parts of matching cutting die 35 and 36. The perforated strip 22 is then introduced into the next station, where the automatic seals 5 are fixed to the perforated tape 22. In the example illustrated in Fig. 7, each closure 5 it is molded in situ directly on the strip 22, which will ultimately constitute the bottom panel 16 of the dispensing container 1. Each closure 5 is located concentrically. around an associated discharge opening 4, so that the flange portion 6 of the closure 5 encompasses the associated discharge opening 4. In the example illustrated in Fig. 7, all the closure 5 is molded from the same material thermoplastic, so that the flange portion 6 of the closure 5 is automatically and integrally coupled by thermal fusion on the bottom panel 16. The strip 22 with the closures 5 constituted or somehow mounted thereon, in the form shown in Fig. 8, is then transported to a slotting station, as shown in Fig. 9, where the holes 8 are formed.

In the example shown in Fig. 9, the head portions 7 of the closures 5 molded onto the strip continuous 22 are grooved to form holes 8 in shape of transverse grooves, in which the two grooves 32 and 33 (Fig. 10) are located in a mutually perpendicular relationship. He hole 8 of the valve shown in Fig. 9, is formed by a cutting die 40 having X-shaped blades 41 adapting the desired transverse groove shape. A die of support 42 is located against the outer surface 27 of the head of the valve to ensure complete grooving. Can be used other techniques for forming holes 8, such as laser cutting or similar. The performance of the operation of shaping of the holes while the closures 5 are still mounted on the continuous strip 22 helps to ensure a correct placement of hole 8 in each valve head 7 even during high speed manufacturing, which ensures a proper alignment of those.

As illustrated in Fig. 11, after the locks 5 have been grooved or treated in any other way to constitute the associated holes 8, the continuous strip 22 is cut lengthwise to constitute the assemblies individual 45, which, in the illustrated example, will remain in last term mounted on the bag portions 15 of the dispensing containers 1. It should be understood that the sets 45 individual can be used in a wide variety of packaging applications, including fixing to a wrap, side wall, corner of the container, or the like.

It should be understood that the present invention also contemplates the assembly of an automatic seal of tightness 5 already constituted on the continuous strip 22 by heat sealing the flange portion 6 of the closure 5 to the bottom panel 16. A conventional thermal fusion tool can be used or sealed including ultrasonic devices for thermal fusion coupling the closing flange portion 6 to the bottom panel 16 to form a secure interconnection and a firm fluid tight seal between them. A disadvantage associated with the assembly of the pre-manufactured closures 5 on the continuous strip 22 implies an extra manipulation of the closures 5, to ensure their correct orientation around the discharge openings 4 located on the strip 22. This problem is solved by molding the closures. 5 in situ directly on the continuous strip 22.

Figs. 14 and 15 schematically illustrate a procedure for manufacturing the illustrated sack portion 15 of the dispensing container 1. A strip 50 of heat sealable material, preferably the same as that of strip 22 of the bottom panel, It is first cut to form two analog panels 51 and 52, which are located in superimposed relationship, as shown in Fig. 15. The side edges 19 of panels 51 and 52 are heat sealed to each other along connection lines 18 for form opposite sides of the bag portion 15.

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As experts in the field will appreciate, bottom panel assemblies 45, with closures 5 formed on they can be used in conjunction with a wide variety of different types of containers or sacks, and not exactly the type of dispensing container 1 of vertical placement bag shown in Figs. 1 to 4

Fig. 16 illustrates a procedure for also manufacture the dispensing container 1, by mounting from the bottom panel assemblies 45 to the bag portions 15 of dispensing containers 1. In the illustrated example, it is mounted a bottom panel 16 at the open end of an associated bag 15, with its free ends constituted in relation superimposed (Fig. 16) at the bottom of the dispensing container 1, as seen in Fig. 1. Since the bottom assembly 45 and the sack portion 15 are constructed from a material thermoplastic, heat sealing dies 55 or similar instruments, to melt the free ends of the set bottom panel 45 and the bag portion 15 with each other to complete the dispensing container 1.

Once the bottom panel assembly 45 is firmly attached to an associated sack portion 15 of the container 2, the container can be filled, for example through of the open upper end of the bag portion 15, as shown in Fig. 16. After the container 2 has been filled, the upper edges of panels 51 and 52 are heat sealed to each other along connection line 17 to complete the package

A removable hermetic seal of belt type transport (not shown) over hole portion 8 of closure 5 to prevent inadvertent leaks during transport, or in other circumstances. The transport seal can also conform before filling the container 2 with the product of fluid consistency.

The present invention also contemplates other Packaging manufacturing techniques and / or procedures. For example, instead of refolding the outer periphery of the assembly 45 of the bottom panel can be thermally coupled to the end open the bag 15 in a flat state, and then the whole molten can be folded down adopting the form shown in Figs. 1 to 4. Thermal fusion connections (not shown) can be applied to the bottom free edges of the container constituted to maintain the bag-shaped configuration of vertical position of the container 1.

The numerical reference (Fig. 17) designates generically another embodiment of the present invention. Since the dispensing container is similar to the packaging of dispensing 1 described above, the analogous parts that they appear in Figs. 1 to 16 and 17, respectively, are represented by the same corresponding numerical references, except by the suffix "a" of the last numbers. At dispensing container 1a, automatic sealing 5a it is mounted on the side wall 60 of the bag portion 15a of the container. In the dispensing container the, the side wall 60 of the sack portion is constructed from a material thermoplastic, to facilitate the constitution or the assembly of the Close 5th on her. Although the container can be dispensed directly through the closing hole 8a applying pressure on the container 2a, or indirectly by inserting a straw to through the closing hole and sucking on the straw, is particularly adapted for dispensing by employing a straw.

The numerical reference 1b (Fig. 18) designates generically another additional embodiment of the present invention. Since the dispensing container 1b is analogous to dispensing container 1 described above, the parts analogs that appear in Figs. 1 to 16 and 18 respectively represent through the same corresponding references numeric, except for the suffix "b" of the references Numeric in the last. In the dispensing container 1b, the automatic sealing 5 is located in a portion upper corner 62 of the bag 15b of the container. 15b portion bag sack 2b, in which the closure 5b is arranged, It is constructed from a thermoplastic material to facilitate the interconnection between them. The location of the corner of closure 5b in the dispensing container 1b is particularly adapted to dispense a liquid product directly in the mouth of the user.

The dispensing containers illustrated, and the associated procedures for manufacturing said containers, provide a relatively economic construction that will prevent the appearance of leaks The liquid product in the container can now be dispensed either directly through the closing hole by applying a discharge pressure on the inner portion, or indirectly inserting a straw through the closing hole and absorbing the straw

In the preceding description, there may have been appreciated by experts in the field who can modifications of the invention be made without departing from the concepts disclosed herein. Such modifications should be considered as included in the claims following, unless these claims, according to their terms, expressly determine otherwise.

Claims (4)

1. A dispensing container for products of fluid consistency and the like, comprising: a container (2) shaped to receive and retain a product of fluid consistency within a portion inside of it, and including a bottom portion (16) with a discharge opening (4) that crosses it; an automatic seal (5) of tightness that it comprises a portion (6) of marginal flange and a portion (7) of head with a hole (8) that extends through it, which opens to allow fluid to flow through it in response to communication with a predetermined discharge pressure, and it closes to interrupt the flow of fluid through it after withdrawal of predetermined discharge pressure; Y wherein said flange portion (6) of said closure (5) surrounds and encompasses said discharge opening (4) of said bottom portion (16) of the container, and is constructed from a thermoplastic material that is thermally coupled to said closing fund (16) to constitute a firm interconnection and a fluid tight seal between them, whereby the liquid product of said container (2) can already be dispensed either directly through said closing hole (8) applying said discharge pressure on the inner portion of said container (2) or indirectly inserting a straw (28) through  said closing hole (8) and applying a vacuum to the straw (28), characterized in that said container (2) has a multi-piece construction comprising a sack portion (15) and a bottom panel (16) defining a bottom portion; Y said closure (5) is molded from a thermoplastic material directly on said bottom panel (16) of the container before connecting said closure with said portion (15) sack of said container (2). 2. A dispensing container as set forth in claim 1, wherein said bottom panel (16) of the container is constituted by an elongated strip (22) of heat sealable material, thin; said portion (15) of bag sack is constituted by an elongated strip (50) of heat sealable material; Y said bottom panel (16) of the container is connected to said bag portion (15) of the container by means of a heat sealing connection. 3. A procedure for manufacturing packaging of dispensing and the like, comprising: provide at least one sheet of material; forming said sheet in containers of the type that includes deposits; characterized in that said procedure includes: provide an elongated strip (22) of material heat sealable to constitute at least the dispensing panels of said containers; constitute openings (4) in the strip (22) to define inside discharge openings of the container; mold in situ thermoplastic closures (5) directly on the strip (22), the closure (5) having head portions (7), and marginal flange portions (6) that are formed by surrounding and encompassing the openings (4) ) discharge of the strip (22); constitute holes (8) in the portions (7) head of the closures (5) which open to allow that the fluid flows through it in response to a communication with a predetermined discharge pressure, and close to interrupt the flow of fluid to its way after the discharge pressure has been removed default; cut the strip (22) to constitute some Dispensing panel assemblies (45), in which each comprises at least one of the dispensing panels (45) with at minus one of the closures (5) molded on them; connect the assemblies (45) of panels dispensing with the deposits to constitute containers of dispensing of the type in which the liquid product of each of The containers (2) can be dispensed either directly to through the closing hole (8) applying pressure to the container (2) or indirectly inserting a straw (28) through the hole (8) and applying a vacuum to the straw (28). 4. Procedure according to what is stated in claim 3, wherein said molding step includes the constitution of the closure (2) with portions (25) of sleeve elastically flexible connector.